| Column 1 | Column 2 |
|---|
| Substances for which medical surveillance is appropriate | Process |
|---|
| Vinyl chloride monomer (VCM). | In manufacture, production, reclamation, storage, discharge, transport, use or polymerisation. |
| Nitro or amino derivatives of phenol and of benzene or its homologues. | In the manufacture of nitro or amino derivatives of phenol and of benzene or its homologues and the making of explosives with the use of any of these substances. |
| Potassium or sodium chromate or dichromate. | In manufacture. |
| Ortho-tolidine and its salts. Dianisidine and its salts. Dichlorobenzidine and its salts. | In manufacture, formation or use of these substances. |
| Auramine. Magenta. | In manufacture. |
| Carbon disulphide. Disulphur dichloride. Benzene, including benzol. Carbon tetrachloride. Trichlorethylene. | Processes in which these substances are used, or given off as vapour, in the manufacture of indiarubber or of articles or goods made wholly or partially of indiarubber. |
| Pitch. | In manufacture of blocks of fuel consisting of coal, coal dust, coke or slurry with pitch as a binding substance. |